Finding the Fourth Proportional to 16,061.94, 22,167.54 and 8,988.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.94 : 22,167.54 = 8,988.75 : x
2. Step 2: Convert to fraction form
   16,061.94/22,167.54 = 8,988.75/x
3. Step 3: Cross multiply
   16,061.94x = 22,167.54 × 8,988.75
4. Step 4: Simplify right side
   16,061.94x = 199,258,475.18
5. Step 5: Solve for x
   x = 199,258,475.18/16,061.94
6. Step 6: Final answer
   x = 12,405.63